Sun Microsystems V40z Server User Manual


 
4-80 Sun Fire V20z and Sun Fire V40z Servers—User Guide March 2005
4.6.2 Clear-CMOS Jumper
The location of the Clear-CMOS jumper (J125) on the Sun Fire V40z motherboard is
shown below. This jumper can be used to clear the CMOS if the server hangs during
certain conditions.
The default position for the jumper is pins 1+2, which is the setting for “Clear-
CMOS-Removed.” This setting retains CMOS settings on each reboot of the
server.
If you move the jumper to pins 2+3, this is the “Clear-CMOS-Installed” setting.
This setting will clear the CMOS settings with each reboot of the server.
FIGURE 4-42 Sun Fire V40z Motherboard, Showing Clear-CMOS Jumper J125
Clear-CMOS
Jumper J125
123
CLR
DFLT
CPU0
CPU1
J125